Twitter tells 330 million users to change their passwords

Twitter has warned its 330 million users to change their passwords after a glitch exposed some in plain text on its internal network. It still urged all users to consider changing their passwords "Out of an abundance of caution". Twitter did not say how many passwords were affected. The glitch was related to its use of "Hashing", which masks passwords as users enters them by replacing them with numbers and letters, according to its blog. As well as changing passwords, users have been advised to turn on two-factor authentication service to help stop accounts being hacked.